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Simplifying 2x + -3(x + -6) + -1(x + -6)(x + -6) = x(x + -6) Reorder the terms: 2x + -3(-6 + x) + -1(x + -6)(x + -6) = x(x + -6) 2x + (-6 * -3 + x * -3) + -1(x + -6)(x + -6) = x(x + -6) 2x + (18 + -3x) + -1(x + -6)(x + -6) = x(x + -6) Reorder the terms: 2x + 18 + -3x + -1(-6 + x)(x + -6) = x(x + -6) Reorder the terms: 2x + 18 + -3x + -1(-6 + x)(-6 + x) = x(x + -6) Multiply (-6 + x) * (-6 + x) 2x + 18 + -3x + -1(-6(-6 + x) + x(-6 + x)) = x(x + -6) 2x + 18 + -3x + -1((-6 * -6 + x * -6) + x(-6 + x)) = x(x + -6) 2x + 18 + -3x + -1((36 + -6x) + x(-6 + x)) = x(x + -6) 2x + 18 + -3x + -1(36 + -6x + (-6 * x + x * x)) = x(x + -6) 2x + 18 + -3x + -1(36 + -6x + (-6x + x2)) = x(x + -6) Combine like terms: -6x + -6x = -12x 2x + 18 + -3x + -1(36 + -12x + x2) = x(x + -6) 2x + 18 + -3x + (36 * -1 + -12x * -1 + x2 * -1) = x(x + -6) 2x + 18 + -3x + (-36 + 12x + -1x2) = x(x + -6) Reorder the terms: 18 + -36 + 2x + -3x + 12x + -1x2 = x(x + -6) Combine like terms: 18 + -36 = -18 -18 + 2x + -3x + 12x + -1x2 = x(x + -6) Combine like terms: 2x + -3x = -1x -18 + -1x + 12x + -1x2 = x(x + -6) Combine like terms: -1x + 12x = 11x -18 + 11x + -1x2 = x(x + -6) Reorder the terms: -18 + 11x + -1x2 = x(-6 + x) -18 + 11x + -1x2 = (-6 * x + x * x) -18 + 11x + -1x2 = (-6x + x2) Solving -18 + 11x + -1x2 = -6x + x2 Solving for variable 'x'. Reorder the terms: -18 + 11x + 6x + -1x2 + -1x2 = -6x + x2 + 6x + -1x2 Combine like terms: 11x + 6x = 17x -18 + 17x + -1x2 + -1x2 = -6x + x2 + 6x + -1x2 Combine like terms: -1x2 + -1x2 = -2x2 -18 + 17x + -2x2 = -6x + x2 + 6x + -1x2 Reorder the terms: -18 + 17x + -2x2 = -6x + 6x + x2 + -1x2 Combine like terms: -6x + 6x = 0 -18 + 17x + -2x2 = 0 + x2 + -1x2 -18 + 17x + -2x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -18 + 17x + -2x2 = 0 Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. 9 + -8.5x + x2 = 0 Move the constant term to the right: Add '-9' to each side of the equation. 9 + -8.5x + -9 + x2 = 0 + -9 Reorder the terms: 9 + -9 + -8.5x + x2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -8.5x + x2 = 0 + -9 -8.5x + x2 = 0 + -9 Combine like terms: 0 + -9 = -9 -8.5x + x2 = -9 The x term is -8.5x. Take half its coefficient (-4.25). Square it (18.0625) and add it to both sides. Add '18.0625' to each side of the equation. -8.5x + 18.0625 + x2 = -9 + 18.0625 Reorder the terms: 18.0625 + -8.5x + x2 = -9 + 18.0625 Combine like terms: -9 + 18.0625 = 9.0625 18.0625 + -8.5x + x2 = 9.0625 Factor a perfect square on the left side: (x + -4.25)(x + -4.25) = 9.0625 Calculate the square root of the right side: 3.010398645 Break this problem into two subproblems by setting (x + -4.25) equal to 3.010398645 and -3.010398645.Subproblem 1
x + -4.25 = 3.010398645 Simplifying x + -4.25 = 3.010398645 Reorder the terms: -4.25 + x = 3.010398645 Solving -4.25 + x = 3.010398645 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.25' to each side of the equation. -4.25 + 4.25 + x = 3.010398645 + 4.25 Combine like terms: -4.25 + 4.25 = 0.00 0.00 + x = 3.010398645 + 4.25 x = 3.010398645 + 4.25 Combine like terms: 3.010398645 + 4.25 = 7.260398645 x = 7.260398645 Simplifying x = 7.260398645Subproblem 2
x + -4.25 = -3.010398645 Simplifying x + -4.25 = -3.010398645 Reorder the terms: -4.25 + x = -3.010398645 Solving -4.25 + x = -3.010398645 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.25' to each side of the equation. -4.25 + 4.25 + x = -3.010398645 + 4.25 Combine like terms: -4.25 + 4.25 = 0.00 0.00 + x = -3.010398645 + 4.25 x = -3.010398645 + 4.25 Combine like terms: -3.010398645 + 4.25 = 1.239601355 x = 1.239601355 Simplifying x = 1.239601355Solution
The solution to the problem is based on the solutions from the subproblems. x = {7.260398645, 1.239601355}
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